The Asco 8220G021 Solenoid Valve (8220G21) is a pilot-operated, normally closed valve that excels in high-heat applications thanks to EPDM or PTFE sealing disc and Class H coil. Built for performance, it withstands steam temperatures of up to 353°F without compromising durability.
Technical Specifications
- Valve Type: Pilot Operated, Normally Closed, 2-Way
- Pipe Size: 1/2″ NPT
- Flow Factor (Cv): 4.0
- Operating Pressure Differential:
- Steam: 5 to 125 psi
- Hot Water: 5 to 150 psi
- Maximum Fluid Temperature:
- Steam: 353°F (178°C)
- Hot Water: 210°F (99°C)
- Body Material: Brass
- Seal Material: EPDM or PTFE
- Voltage Options:
- AC: 24, 120, 240, 480 V
- DC: 6, 12, 24, 120, 240 V
- Watt Rating:
- AC: 10.1 watts
- Coil Insulation Class: H
- Solenoid Enclosure:
- Standard: RedHat II – Watertight, Types 1, 2, 3, 3S, 4, and 4X
- Optional: Explosionproof & Watertight, Types 3, 3S, 4, 4X, 6, 6P, 7, and 9
Key Features and Functionality
- High-Temperature Operation: Rated for steam up to 353°F.
- EPDM or PTFE Seal & Disc: Resists thermal stress and fluid degradation.
- Class H Coil: Withstands extreme coil heating environments.
- Quick Maintenance Access: The threaded bonnet simplifies servicing.
- Wide Pressure Range: Handles up to 125 psi on steam.
Compatible Components and Related Parts
- ASCO RedHat II Coil Series
- ASCO Mounting Brackets
- ASCO Seal Kit for 8220 Series
- ASCO Explosionproof Solenoid Enclosure
Industry Applications
- Sterilization Chambers: Control high-temperature steam flow efficiently.
- Food Processing Equipment: Supplies pressurized hot water effectively.
- Autoclave Systems: Manage pressure with minimal wear and tear.
- Commercial Dishwashers: Sustain performance under repetitive heat cycles.
- Boilers and Heaters: Utilized in fluid control loops.
Compliance and Approvals
- UL Listed
- CSA Certified
- Meets Applicable CE Directives
Installation and Operational Notes
- Make sure the voltage matches before turning on the power.
- Depressurize all lines before starting any work.
- Put a fine strainer right before the valve.
- Don’t let the pipes push or twist the valve.
- Turn the power on and listen for a click from the solenoid.
Series Catalog
Asco Hot Water and Steam Valves Two Way
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